Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 196,181	$ 74,120
Adjustments to reconcile net income to cash flows provided by operating activities:
Depreciation and amortization	31,812	24,516
Stock-based compensation expense	6,517	7,436
Other non-cash items	1,771	1,318
Changes in assets and liabilities, net of acquisitions of businesses:
Accounts receivable, net	(240,404)	(139,245)
Inventories, net	(31,278)	(41,170)
Prepaid expenses and other assets	20,495	(3,328)
Accounts payable, trade	57,808	49,644
Accrued expenses and other liabilities	92,024	31,556
Net cash flows provided by operating activities	134,926	4,847
Cash flows from investing activities:
Capital expenditures	(42,037)	(20,957)
Acquisitions of businesses	(50,089)	(2,779)
Other investing activities	(219)	(605)
Net cash flows used in investing activities	(92,345)	(24,341)
Cash flows from financing activities:
Vesting of stock-based awards, net of shares tendered for payment of taxes	(10,569)	(7,767)
Proceeds from revolving credit facility	372,400	208,863
Repayments under revolving credit facility	(330,600)	(141,489)
Repayments under shelf loan, term loan, and other borrowings	(55,642)	(3,889)
Payment of dividends	(22,870)	(18,939)
Payment of contingent consideration and holdbacks related to acquisitions	(2,031)	(2,792)
Other financing activities	(4)	0
Net cash flows (used in) provided by financing activities	(49,316)	33,987
Effect of exchange rate changes on cash and cash equivalents	(712)	(2,995)
Net (decrease) increase in cash and cash equivalents	(7,447)	11,498
Cash and cash equivalents at beginning of period	62,896	51,821	$ 51,821
Cash and cash equivalents cash at end of period	55,449	63,319	$ 62,896
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	3,943	3,564
Cash paid during the period for income taxes, net of refunds	192	(86)
Purchase of property and equipment in accrued expenses	$ 2,400	$ 3,787